In a saucepan, on medium heat, bring to a boil 3 cups of milk, a cup or so of heavy cream, 3 inch-long cinnamon sticks, vanilla (bean/pods or vanilla essence) and a teaspoon of grated nutmeg. Switch off the heat. Separately, beat 5 egg yolks and sugar until thick ribbons form. Slowly whisk in the hot milk mix, until smooth. Add rum/bourbon/brandy and stir. Refrigerate overnight. Before serving, fold in the stiffly beaten egg whites. Garnish (grated nutmeg, cinnamon, or chocolate; feel free to improvise).